I like the spacers under the wheels on the hf cart, that is worthy for a couple of reasons but one, its so easy.
I see a fair number of shops with bad air plumbing, some of it looks like good ideas but it really isn't. I like the rubber maid thing, I am for anything simple and cheap, more is not always better.
I walk by and pick some of it up so frequently that there isn't any sense of putting it away, I leave it out on a cart tray. The cart stores the drive tools and a set of metric combo wrenches. It sits there and you can reach it from the hoist bay and from the tractor bay we call it beyond the hoist a frame which has built in tool racks, if you really want can spin and tailor in a second for a days work for that bay, can move the drive cart for a top end job on a car etc and there are other rolling carts to sit anything on in the process along with adjustable lights on 3 stands.
With a few seconds discipline can never have to stand on a cord or hose or pick up anything off of the floor.
If a guy is a little bit diligent as he goes and get in the habit of putting away your errors, putting away or on another cart the stuff used in the R&R process this all is really fast. This would be a flat rate guys dream.
The value of the tools on their own here is nothing, could easily replace it all for 1500 if I wanted to be diligent or 2 easy and have great air guns. No box expense, no wear, easy, Ray Charles could find it all.
If we are working in the area we turn the 80 wats of tubes on right over the tool "island" that it is, if its hit and miss I turn on a 9 watt cfl for the day so you can feel your way around.
Over the years have moved all the fittings and outlets, added on little things, turned the direction etc. Added hangers, added tools, removed tools, not a lot of spending. I brought this up as I was looking at old file pics for something and there a lot of changes involving the "service cart"